CN218600784U - Rail vehicle side window pressure alternation endurance test device - Google Patents
Rail vehicle side window pressure alternation endurance test device Download PDFInfo
- Publication number
- CN218600784U CN218600784U CN202222198572.8U CN202222198572U CN218600784U CN 218600784 U CN218600784 U CN 218600784U CN 202222198572 U CN202222198572 U CN 202222198572U CN 218600784 U CN218600784 U CN 218600784U
- Authority
- CN
- China
- Prior art keywords
- side window
- pressure
- branch pipe
- sealing device
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a rail vehicle side window pressure alternation endurance test device, which comprises a side window sealing device, a fan and an industrial computer, wherein the side window sealing device is used for installing a side window; the side window sealing device is internally provided with a pressure sensor electrically connected with the industrial personal computer, the side surface of the side window sealing device is provided with an air inlet passage for inflation and an air outlet passage for air exhaust, flow valves are respectively arranged on the air inlet passage and the air outlet passage, and the flow valves are electrically connected with the industrial personal computer and used for sending flow data of inlet/outlet air to the industrial personal computer; the industrial control computer is internally provided with a pressure feedback module, a motor driving module and a flow valve control module; and the pressure feedback module is used for feeding back the pressure change in the side window sealing device in real time according to the flow data of the inlet/outlet gas and the data sent by the pressure sensor and carrying out actual wind pressure waveform simulation. The device can simulate the crossing pressure wave generated when the train meets under the real environment, and guarantee that the test result is accurate and reliable.
Description
Technical Field
The utility model relates to a side window wind carries fatigue test device field, concretely relates to rail vehicle side window pressure reversal endurance test device.
Background
When the train meets another oppositely running train, the air pressure on the surface of the train is suddenly changed to form a transient pressure impact, and the positive pressure and the negative pressure peaks occur in sequence within about tens of milliseconds, and the transient pressure impact is the train meeting pressure wave. Along with the improvement of the running speed of the train, the influence of the crossing pressure wave generated during the meeting on the strength of the side wall and the side window of the train, the influence on the comfort level of passengers in the train and the influence on the motion stability of the train are increased sharply.
At present, the performance research of train side window glass under fatigue load at home and abroad is not deep and comprehensive enough, and the wind pressure fatigue has a great influence on the performance of the side window when a high-speed train runs, so that the transient impact of intersection pressure waves on the train side window is most obvious, and the personal safety of passengers is seriously threatened if the transient impact is not properly treated. According to statistics, except for the danger caused by one-time impact, the train bears the impact of nearly millions of periodic intersection pressure waves in a cumulative way in the using process, the accumulated load impact can cause great damage to a side window system comprising side window hollow glass, side window adhesive and the like, the side window system can be accumulated day by day, and a side window component can possibly generate fatigue cracks to cause structural damage, air tightness and heat insulation damage. If the side window glass is cracked accidentally or the bonding glue is damaged by fatigue, the side window glass may be cracked or separated from the frame, which poses a great threat to the driving safety and the personal and property safety of passengers.
In order to ensure the safety and reliability of the side window of the rail vehicle, a wind load fatigue testing machine (shown in figure 1) is mainly adopted to test the fatigue performance of the side window in the prior art; before testing, the experimental side window is fixed on the outer side of the air pressure chamber 6 by bolts, wherein the outer glass (facing to the outside when loading) faces to the inner side of the air pressure chamber, and the inner glass (facing to the inside of a carriage when loading) faces to the laboratory and is exposed in the air environment; then, a fan 1 is used for providing pressure power, the size of the pressure is adjusted through a pipeline switch 3 and a fine adjustment switch 4 on a pipeline 2 to the pressure required by the experiment, and an air pressure chamber is inflated and exhausted through controlling a solenoid valve 5 and the positive and negative rotation of a motor to apply positive pressure and negative pressure; and finally, recording the strain and the deflection of the preset position of the side window by using a measuring instrument 7. The side window fatigue performance testing method is a timing type test, belongs to a verification type test, and cannot really evaluate the service life of a side window; in addition, the wind-load fatigue testing machine cannot control wind pressure waveform and frequency and simulate crossing pressure waves generated when trains meet in a real environment, so that the accuracy and reliability of the test result of the side window sample piece are reduced; furthermore, the wind-load fatigue testing machine cannot accurately control the pneumatic pressure, and therefore, the air tightness performance test of the side window cannot be completed simultaneously when the fatigue test is performed.
SUMMERY OF THE UTILITY MODEL
In view of the technical problem, the utility model aims to provide a rail vehicle side window pressure alternation endurance test device, the device aerify or bleed to side window sealing device through the fan, aerify or bleed the in-process through controlling flow valve on the air inlet/outlet pipeline and regulate and control the wind pressure wave form and the frequency of input, the rendezvous pressure wave that produces when simulating under the real environment train meeting guarantees accuracy, reliability and the stability of test result.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rail vehicle side window pressure alternation endurance test device comprises a side window sealing device, a fan and an industrial control computer; the side window sealing device is of a closed box body structure, a side window mounting part for mounting a side window is processed on the side window sealing device, and the side window is fixedly mounted on the side window mounting part of the side window sealing device; the side window sealing device is internally provided with a pressure sensor which is electrically connected with an industrial personal computer and used for transmitting pressure data in the side window sealing device to the industrial personal computer; the side face of the side window sealing device is provided with an air inlet passage for inflation and an air outlet passage for air extraction, flow valves are installed on the air inlet passage and the air outlet passage, and the flow valves are electrically connected with the industrial personal computer and used for sending flow data of inlet/outlet air to the industrial personal computer; the fan is used for providing positive pressure for the air inlet passage for inflation and providing negative pressure for the air outlet passage for air extraction; the industrial control computer is internally provided with a pressure feedback module, a motor driving module and a flow valve control module; the pressure feedback module is used for feeding back pressure change in the side window sealing device in real time according to flow data of inlet/outlet gas and data sent by the pressure sensor and carrying out actual wind pressure waveform simulation; the motor driving module is used for controlling a motor in the fan to rotate forwards or backwards and inflating or exhausting the side window sealing device; and the flow valve control module is used for controlling flow valves on the air inlet passage and the air outlet passage to realize the control of gas flow in the processes of inflation and air exhaust.
As the utility model discloses a preferred, inlet channel and outlet channel share a fan, and inlet channel includes that the second divides pipe, third to divide the pipe, and outlet channel includes that the first divides pipe, fourth divides the pipe, first branch pipe, third divide the pipe to install in the side of side window sealing device, and with the inside intercommunication of side window sealing device, second branch pipe, fourth divide the pipe and communicate with the external atmosphere, first branch pipe and second branch pipe communicate with the inlet line through the tee bend, the inlet line communicates with the air intake of fan, the third divides the pipe and fourth branch pipe communicates with the outlet line through the tee bend, the outlet line communicates with the air outlet of fan; the first branch pipe and the fourth branch pipe are respectively provided with a first one-way valve and a first pneumatic valve, and the second branch pipe and the third branch pipe are respectively provided with a second one-way valve and a second pneumatic valve; the second branch pipe, the air inlet pipeline, the air outlet pipeline and the third branch pipe form an air inlet passage for inflation; the first branch pipe, the air inlet pipeline, the air outlet pipeline and the fourth branch pipe form an air outlet passage for air extraction;
the industrial personal computer is also internally provided with a first one-way valve driving module, a second one-way valve driving module, a first pneumatic valve driving module and a second pneumatic valve driving module; the first one-way valve driving module is used for controlling the action of the first one-way valve; the second one-way valve driving module is used for controlling the action of a second one-way valve; the first pneumatic valve driving module is used for controlling the action of the first pneumatic valve; and the second pneumatic valve driving module is used for controlling the second pneumatic valve to act.
As the optimization of the utility model, a time control module is arranged in the industrial personal computer; and the time control module is used for calculating the time required by the side window sealing device to reduce from a certain pressure to a specified pressure according to the pressure data sent by the pressure sensor, and when the time exceeds a threshold value, the time is displayed by an industrial personal computer, so that the air tightness of the tested side window sample piece is proved to reach the standard.
As the optimization of the utility model, the pressure feedback module feeds back the pressure change in the side window sealing device in real time according to the following formula and performs the actual wind pressure waveform simulation;
wherein: v 1 Sealing the volume of space, P, for a side window sealing device 1 The pressure of a sealed space of the side window sealing device at the moment of t =0, and Q (t) is the gas volume flow in the process of inflation or air exhaust within t time; p i Is the pressure in the side window seal at time t.
As the utility model discloses a further preferred, the inlet end that the second was in charge of links firmly with the muffler, and the end of giving vent to anger that the fourth was in charge of links firmly with the muffler.
The utility model has the advantages and beneficial effect:
(1) The utility model provides a pressure alternation endurance test device simple structure, the installation is compact, occupation space is little, gather the flow data of fan import and export gas through the flow valve, later through the pressure change in the real-time feedback side window sealing device of pressure feedback module, carry out actual wind pressure waveform simulation, the input wind pressure waveform and the frequency that make the device are controllable, the device can simulate the rendezvous pressure wave that produces under the real environment when the train meets under the experimental time, can satisfy the test demand of different side window appearance pieces, guarantee the accuracy of test result simultaneously, reliability and stability.
(2) The utility model discloses an install pressure sensor in the side window sealing device, utilize pressure sensor can carry out accurate detection to the pressure in the side window sealing device, later calculate the required time that the pressure in the side window sealing device descends to 1000Pa from 4000Pa through the time control module that sets up in the industrial personal computer, if the airtight atmospheric pressure of measuring of side window changes to 1000Pa from 4000Pa and is greater than 50s, then prove that the side window gas tightness is good, does not leak gas; the device can realize the integration of side window fatigue test and air tightness performance testing result, shortens side window test time, practices thrift the test cost.
Drawings
FIG. 1 is a schematic structural diagram of a conventional wind-borne fatigue testing machine;
FIG. 2 is a schematic structural view of the rail vehicle side window pressure alternation endurance test device provided by the present invention;
FIG. 3 is a schematic diagram of a rail vehicle side window pressure alternation endurance test apparatus provided by the present invention;
FIG. 4 is a pressure profile of a side window pressure alternation durability test.
Reference numerals: the side window sealing device comprises a side window sealing device 1, a Roots blower 2, an industrial personal computer 3, a first pipeline 4, a second pipeline 5, an air inlet pipeline 6, an air outlet pipeline 7, a first one-way valve 8, a first pneumatic valve 9, a second one-way valve 10, a second pneumatic valve 11, a flow valve 12, a pressure sensor 13, a silencer 14, a pressure feedback module 31, a motor driving module 32, a first one-way valve driving module 33, a second one-way valve driving module 34, a first pneumatic valve driving module 35, a second pneumatic valve driving module 36, a flow valve control module 37, a time control module 38, a first branch pipe 41, a second branch pipe 42, a third branch pipe 51 and a fourth branch pipe 52.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
In the description of the present application, it should be noted that the terms "in", "under", and the like indicate the orientation or positional relationship: the particular arrangements or components shown in the drawings, or the orientations or positional relationships conventionally used in the manufacture of the applications, are for convenience only and to simplify the description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The utility model provides a rail vehicle side window pressure alternation endurance test device, figure 1 is rail vehicle side window pressure alternation endurance test device's schematic structure diagram, and figure 2 is rail vehicle side window pressure alternation endurance test device's schematic diagram.
As shown in fig. 2 and 3, the durability test device for pressure alternation of the side window of the rail vehicle provided by the utility model comprises a side window sealing device 1, a roots blower 2 and an industrial personal computer 3; the side window sealing device 1 is of a closed box body structure, a side window mounting part for mounting a side window is machined on the side window sealing device 1, and the side window is mounted and fixed on the side window mounting part 101 of the side window sealing device according to an actual assembly mode of a motor train unit train; a pressure sensor 13 is arranged in the side window sealing device 1, and the pressure sensor 13 is electrically connected with the industrial personal computer 3 and is used for transmitting pressure data in the side window sealing device 1 to the industrial personal computer; a first pipeline 4 and a second pipeline 5 are installed on the side surface of the side window sealing device 1; the first pipeline 4 is composed of a first branched pipe 41 and a second branched pipe 42, and the second pipeline 5 is composed of a third branched pipe 51 and a fourth branched pipe 52;
the first branch pipe 41 and the third branch pipe 51 are arranged on the side face of the side window sealing device 1 and are communicated with the inside of the side window sealing device, the second branch pipe 42 and the fourth branch pipe 52 are communicated with the outside atmosphere, the first branch pipe 41 and the second branch pipe 42 are communicated with the air inlet pipeline 6 through a tee joint, the air inlet pipeline 6 is communicated with an air inlet of the Roots blower, the third branch pipe 51 and the fourth branch pipe 52 are communicated with the air outlet pipeline 7 through a tee joint, and the air outlet pipeline 7 is communicated with an air outlet of the Roots blower; the first branch pipe 41 and the fourth branch pipe 52 are respectively provided with a first one-way valve 8 and a first pneumatic valve 9, and the second branch pipe 42 and the third branch pipe 51 are respectively provided with a second one-way valve 10 and a second pneumatic valve 11; the second branch pipe 42, the air inlet pipeline 6, the air outlet pipeline 7 and the third branch pipe 51 form an air inlet passage, and air is filled into the side window sealing device 1 through the air inlet passage; the first branch pipe 41, the air inlet pipeline 6, the air outlet pipeline 7 and the fourth branch pipe 52 form an air outlet passage, and air in the side window sealing device 1 is pumped out through the air outlet passage to realize air pumping;
the air inlet pipeline 6 and the air outlet pipeline 7 are both provided with a flow valve 12, and the flow valves 12 are electrically connected with the industrial personal computer 3 and used for sending the gas flow data of the air inlet passage and the air outlet passage to the industrial personal computer 3;
the industrial personal computer 3 is internally provided with a pressure feedback module 31, a motor driving module 32, a first one-way valve driving module 33, a second one-way valve driving module 34, a first pneumatic valve driving module 35, a second pneumatic valve driving module 36, a flow valve control module 37 and a time control module 38; the pressure feedback module 31 is used for feeding back pressure change in the side window sealing device in real time according to the flow data of gas at the inlet/outlet of the Roots blower and data sent by the pressure sensor and according to the following formula, and carrying out actual wind pressure waveform simulation;
wherein: v 1 Sealing space body for side window sealing deviceAccumulating; p 1 The side window sealing device at the time t =0 seals the space pressure; q (t) is the gas volume flow in the process of inflation or air exhaust within t time; p i The pressure in the side window sealing device at the moment t; the motor driving module 32 is used for controlling the motor in the Roots blower to rotate forwards or reversely, and inflating or exhausting the side window sealing device; the first one-way valve driving module 33 is used for controlling the action of the first one-way valve; the second check valve driving module 34 is configured to control a second check valve to act; the first pneumatic valve driving module 35 is configured to control the first pneumatic valve to operate; the second pneumatic valve driving module 36 is used for controlling the second pneumatic valve to act; the flow valve control module 37 is used for controlling flow valves on the air inlet pipeline and the air outlet pipeline to realize the control of the gas flow in the process of inflation or air exhaust; the time control module 38 is used for calculating the time required by the side window sealing device to reduce a certain pressure to a specified pressure according to the pressure data sent by the pressure sensor, and when the time exceeds a threshold value, the time is displayed by an industrial personal computer to prove that the air tightness of the tested side window sample piece reaches the standard;
in the test process, when the side window sealing device 1 needs to be inflated, the industrial control computer 3 controls the second one-way valve 10 and the second pneumatic valve 11 of the side window pressure alternation durability test device to act, at the moment, gas enters from the second branch pipe 42, enters the air inlet 201 of the Roots blower after passing through the air inlet pipeline 6, is output from the air outlet 202 of the Roots blower after being pressurized by the Roots blower 2, then enters the side window sealing device 1 through the air outlet pipeline 7 and the third branch pipe 51, and the flow valve 12 on the air outlet pipeline 7 records the flow of the output gas in real time during inflation; when the side window sealing device 1 needs to be pumped, the first check valve 8 and the first pneumatic valve 9 of the side window pressure alternation durability test device are controlled to act through an industrial personal computer, at the moment, gas is output from the side window sealing device 1, is input into an air inlet 201 of the Roots blower after passing through the first branch pipe 41 and the air inlet pipeline 6, is output from an air outlet of the Roots blower after being sucked by the Roots blower, and is then discharged into the air through the tail ends of the air outlet pipeline 7 and the fourth branch pipe 52, a flow valve on the air inlet pipeline 6 records the flow of the output gas in real time during pumping, and the control of input wind pressure waveform and frequency is realized through controlling the gas flow; in actual test, the input wind pressure waveform and frequency can be regulated and controlled according to the test requirements of different side window samples, intersection pressure waves generated when trains meet under a real environment are simulated, and the accuracy and reliability of the test are guaranteed.
In addition, in order to reduce the noise of the side window pressure alternation endurance test device, the air inlet end of the second branched pipe 42 is fixedly connected with the silencer 14, and the air outlet end of the fourth branched pipe 52 is fixedly connected with the silencer 14.
The specific steps of the side window pressure alternation endurance test by using the device provided by the embodiment are as follows:
s1, placing the matched side window sample for more than 24 hours in an environment with the temperature of 23 +/-2 ℃ and the relative humidity of 50 +/-5%;
s2, mounting a side window matched with a sealing tool on a side window sealing device of the rail vehicle side window pressure alternation endurance test device according to an actual train side window assembly mode, and checking the sealing effect of the interface of the side window sealing device and the sealing tool to meet the air tightness detection sealing requirement;
s3, after the side window is installed on the rail vehicle side window pressure alternating endurance test device, inflating or exhausting air to a side window sealing device through a Roots blower, and carrying out an air tightness test with the air tightness load pressure of +/-8000 Pa, wherein the total test load frequency is 200000 times;
in the embodiment, when the side window sealing device is inflated or exhausted, the flow valve on the gas inlet/outlet pipeline communicated with the Roots blower is controlled according to the actual operating environment of the side window sample piece, the flow of inlet/outlet gas is regulated and controlled by controlling the flow valve, the regulation and control of input wind pressure waveform and frequency are realized, and intersection pressure waves generated when trains meet under the real environment are simulated, wherein the input wind pressure waveform and the input wind pressure frequency are shown in FIG. 4;
s4, checking the loosening, deformation and damage conditions of each part of the side window after the test is finished, and determining that the sealing adhesive parts at the connecting parts of the side window body, the periphery of the side window and the side window sealing device are complete and undamaged;
and S5, continuously introducing gas into the side window sealing device through the Roots blower, testing the time required by the change of the internal air pressure of the side window sealing device from 4000Pa to 1000Pa, and if the air pressure measured by the side window is changed from 4000Pa to 1000Pa for more than 50S, enabling the side window air tightness test to reach the standard, and completing the pressure alternation durability test and the air tightness test of the side window.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and not for limiting the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (4)
1. A rail vehicle side window pressure alternation endurance test device is characterized by comprising a side window sealing device, a fan and an industrial computer; the side window sealing device is of a closed box body structure, a side window mounting part for mounting a side window is processed on the side window sealing device, and the side window is fixedly mounted on the side window mounting part of the side window sealing device; the side window sealing device is internally provided with a pressure sensor which is electrically connected with the industrial personal computer and used for transmitting pressure data in the side window sealing device to the industrial personal computer; the side face of the side window sealing device is provided with an air inlet passage for inflation and an air outlet passage for air extraction, flow valves are installed on the air inlet passage and the air outlet passage, and the flow valves are electrically connected with the industrial personal computer and used for sending flow data of inlet/outlet air to the industrial personal computer; the fan is used for providing positive pressure for the air inlet passage for inflation and providing negative pressure for the air outlet passage for air extraction; the industrial control computer is internally provided with a pressure feedback module, a motor driving module and a flow valve control module; the pressure feedback module is used for feeding back pressure change in the side window sealing device in real time according to flow data of inlet/outlet gas and data sent by the pressure sensor and carrying out actual wind pressure waveform simulation; the motor driving module is used for controlling a motor in the fan to rotate forwards or backwards and inflating or exhausting the side window sealing device; and the flow valve control module is used for controlling flow valves on the air inlet passage and the air outlet passage to realize the control of gas flow in the processes of inflation and air exhaust.
2. The rail vehicle side window pressure alternation endurance test device of claim 1, wherein the air inlet passage and the air outlet passage share one fan, the air inlet passage comprises a second branch pipe and a third branch pipe, the air outlet passage comprises a first branch pipe and a fourth branch pipe, the first branch pipe and the third branch pipe are mounted on the side surface of the side window sealing device and communicated with the inside of the side window sealing device, the second branch pipe and the fourth branch pipe are communicated with the outside atmosphere, the first branch pipe and the second branch pipe are communicated with an air inlet pipeline through a tee joint, the air inlet pipeline is communicated with an air inlet of the fan, the third branch pipe and the fourth branch pipe are communicated with an air outlet pipeline through a tee joint, and the air outlet pipeline is communicated with an air outlet of the fan; the first branch pipe and the fourth branch pipe are respectively provided with a first one-way valve and a first pneumatic valve, and the second branch pipe and the third branch pipe are respectively provided with a second one-way valve and a second pneumatic valve; the second branch pipe, the air inlet pipeline, the air outlet pipeline and the third branch pipe form an air inlet passage for charging air; the first branch pipe, the air inlet pipeline, the air outlet pipeline and the fourth branch pipe form an air outlet passage for air extraction;
the industrial personal computer is also internally provided with a first one-way valve driving module, a second one-way valve driving module, a first pneumatic valve driving module and a second pneumatic valve driving module; the first one-way valve driving module is used for controlling the action of the first one-way valve; the second one-way valve driving module is used for controlling the action of a second one-way valve; the first pneumatic valve driving module is used for controlling the action of the first pneumatic valve; and the second pneumatic valve driving module is used for controlling the second pneumatic valve to act.
3. The rail vehicle side window pressure alternation endurance test device of claim 1, wherein a time control module is further disposed in said industrial personal computer; and the time control module is used for calculating the time required by the side window sealing device to reduce from a certain pressure to a specified pressure according to the pressure data sent by the pressure sensor.
4. The rail vehicle side window pressure alternation endurance test device of claim 2, wherein an air inlet end of the second branched pipe is fixedly connected with a silencer, and an air outlet end of the fourth branched pipe is fixedly connected with the silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222198572.8U CN218600784U (en) | 2022-08-22 | 2022-08-22 | Rail vehicle side window pressure alternation endurance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222198572.8U CN218600784U (en) | 2022-08-22 | 2022-08-22 | Rail vehicle side window pressure alternation endurance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218600784U true CN218600784U (en) | 2023-03-10 |
Family
ID=85395844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222198572.8U Active CN218600784U (en) | 2022-08-22 | 2022-08-22 | Rail vehicle side window pressure alternation endurance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218600784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565930A (en) * | 2024-01-16 | 2024-02-20 | 山西世恒铁路技术有限公司 | High-speed train meeting identification method for vehicle-mounted line inspection instrument |
-
2022
- 2022-08-22 CN CN202222198572.8U patent/CN218600784U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565930A (en) * | 2024-01-16 | 2024-02-20 | 山西世恒铁路技术有限公司 | High-speed train meeting identification method for vehicle-mounted line inspection instrument |
| CN117565930B (en) * | 2024-01-16 | 2024-03-22 | 山西世恒铁路技术有限公司 | High-speed train meeting identification method for vehicle-mounted line inspection instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218600784U (en) | Rail vehicle side window pressure alternation endurance test device | |
| CN102680181B (en) | Method and device for testing vehicle body airtightness and fatigue of railway vehicle | |
| CN101788384A (en) | Engine plateau environment laboratory | |
| CN115452257A (en) | Method for evaluating actual running mileage life of side window of railway vehicle | |
| CN201983914U (en) | Vehicle body airtightness fatigue test device for railway vehicles | |
| CN202133515U (en) | Automatic positive pressure airtight detection apparatus | |
| CN108801579B (en) | Dynamic pressure quick response balance system and application thereof | |
| CN104515655A (en) | Engine part and whole engine airtightness detection platform | |
| CN111337203A (en) | Airtight and wind pressure capability test system of door | |
| CN113959869B (en) | High-pressure gas explosion experiment device and use method | |
| CN203772506U (en) | Dynamic air tightness detection device in case of automobile road driving | |
| CN212476862U (en) | Vacuum pumping system applied to neodymium iron boron vacuum diffusion furnace | |
| CN110231459B (en) | Detection device for soil exhaust gas isotopes | |
| CN109459277B (en) | Constant-speed control box applied to portable coal dust sampling device and application method of constant-speed control box | |
| CN214584664U (en) | Device for detecting condition of DPF internal flow channel | |
| CN216349612U (en) | Shield pressure maintaining system experiment device | |
| CN206074187U (en) | A kind of vehicle engine exhaust divided manifold device for detecting sealability | |
| CN114136675B (en) | Experimental device for shield pressure maintaining system and using method thereof | |
| CN217805336U (en) | Turboexpander test environment simulation device | |
| CN208399115U (en) | Sound disk group mould ageing environment simulation mechanism | |
| CN206754819U (en) | A kind of natural gas line pressure testing device | |
| CN219590113U (en) | Withstand voltage verifying attachment | |
| CN208399117U (en) | The sound disk group mould Aging simulation equipment being had using novel static disk smelting | |
| CN108844726A (en) | Sound disk group mould ageing environment simulation mechanism | |
| CN208399116U (en) | Compressor of air conditioner sound disk group mould Aging simulation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |